Toy airplane



A. HARB TOY AIRPLANE July 4, 1939.

Filed 00 1;. 6, 1958 iNVENTOR ATTORNEY Patented July 4, 1939 UNITEDSTATES gram oFFmE 16 Claims.

The present invention is directed to flying machines and moreparticularly is concerned with an improved serviceable toy airplane andthe objects, advantages, and features thereof will be apparent from acareful consideration of the following detailed disclosure viewed in thelight of the accompanying drawing wherein:

Fig. l is a plan view of the toy airplane according to my invention.

Fig. 2 is a longitudinal sectional view taken on the line 22 of Fig. 1.

Fig. 3 is a transverse sectional view taken along the line 33 of Fig. 1.

Fig. 4 is a sectional view taken along the line 4-fi of Fig. 1.

Fig. 5 is a sectional view taken along the line 55 of Fig. 1.

Fig. 6 is a fragmentary front view of the propeller showing the improvedhook for operatively sustaining the revolvable elastic power means.

Fig. 7 is a perspective view of the hook.

Fig. 8 is an enlarged sectional view of the frictional connectionutilized to slidably and adjustably sustain the propeller, and front andrear wing mounts on the chassis Fig. 9 is a sectional view on the line9-9 of Fig. 6 and Fig. 10 is a sectional view of a stabilized cabinaccording to another form of the invention.

Illustrative of the embodiment disclosed, the knock down toy airplaneaccording to the invention is generally denoted A and comprises anelongated substantially V shaped channeled one piece body or chassis Chaving the inclined but diverged sides II provided with outwardly anddownwardly turned flanged or hooked tracks 12 spaced from companionsides H and defining therewith longitudinally disposed grooves i3. Thesetracks and grooves are utilized to slidably but frictionally guide thehollow propeller carrier P, the hollow front wing mount S, and thehollow rear wing carrier R, longitudinally of the channeled body C.

For this purpose it will be observed that the propeller carrier P, therear tail carrier R, and the front wing or intermediate carrier S eachincludes turned over flanges Hi. In case of the propeller carrier P,flanges or hooks l4 extend upwardly and outwardly and are integral withthe laterally projecting lugs [5 (Fig. 3) forming an integral part ofcasing 16 of the propeller carrier or mount P and this casing includes aplurality of struck out tapered and hollow and alined nipples l1 througha pair of which bent terminals I8 of sides I9 of a wire bail or loop 20are threaded and appropriately rotatably sustained and it will be notedthat one end 25 of a helicoidal spring 22 is disconnectably fastened tothe swingable loop 20 while another end 23 of spring 22 is appropriatelythreaded into a transverse brace 24 sustained by swingable legs 25 of apivoted truck generally denoted T having a lower fixed brace 26 providedwith fixed shaft extensions 21 for rotatably supporting wheels 28.However it should be observed that the upper ends of legs 25 includeconcavo-convex ears 29 rotatably held against bearings 30 by suitableupset fulcrum pins 3| secured to these bearings Which form a part of thefront wing carrier or mount S.

The inclined flanges M of the hollow mount S and the rear wing hollowcarrier R are also frictionally and slidably guided within channels l3and on track l2 and in the case of hollow mount S (Fig. l), flanges Mare integral with the in- 20 clined sides 32 of the irregularly shapedcasing 33- provided with the longitudinally arranged dome shaped windchute 34 integral with laterally extending shoulders 35 provided withlaterally projecting lugs 36 fixedly carrying the front wings 3'? eachappropriately reinforced by the several ribs 38.

In the case of the rear wing mount R (Fig. 5), the inclined hookedflanges M are integral with and spaced from the inclined sides 39 of thehollow casing llil. Thus as in the case of the propeller mount P and thefront wing mount S, a suitable slidable but frictional connectiondefined by the interhooking and overlapping flanges E2 of the channeledmember or body In and the several flanges M of the mounts P, S and R andconsequently each of the latter may be adjustably moved and setlongitudinally of the channeled supporting member 10. It follows thateach and every of these aerofoil mounts may be readily slidably removedfrom the channeled member Hi. It should be noted however that casing Mlof the rear mount R is provided with flanges M to which the rear wing 42is fixedly secured.

Extending upwardly from the rear wing 42 is the steering fin 43 havingflange 44 secured to central depressed portion 45 of the wing i2 and thecentral part 46 of casing 40 by suitable pins 46. Wing 42 is preferablystamped out of relatively thin aluminum stock and is suitably embossedas at 41 to provide rigidity and it will be observed that fin 43includes a rear tail portion 38 or rudder which can be swung and setfrictionally relative to the fixed fulcrum pin 49 carried by fin 43.Hence the rudder 48 may be adtowards the left or right. The rear wing 42is also provided with a reduced tail or rubber 55 which maybe hinged andfrictionally set in respect to fixed'fulcrum pin 5|. Rudder 50 may beconsidered as the steering means to' direct the plane in a verticaldirection. If rudder 59 or elevator steering means is tilted slightlyupwardly the plane will elevate. On the other hand if the steeringelevator is set to a downwardly inclined position the plane will move inva downward direction.

Associated with the channeled body ID in the longitudinal groove thereofis a motor 5| taking the formof a plurality of sensibly resilient butrelatively durable elastic cords, the ends of which are attached to thefront and rear connectors 52 and 53 each provided with a lug 54. The lug54 of the rear connector 53 is fixedly fastened by a rivet 55 to thechassis or channeled member m while lug 54 of the front connector 52 isalso perforated to threadably receive first the rear curved portion 56and subsequently the rectilinear portion 5i of the hook generallydenoted H which includes a downwardly directed and inclined part58'merging with arectilinear shank or shaft 59 integral with a loopshaped driving head or connector broadly designated 60 disposedsubstantially normal to shank 59 and comprising the rectilinear curvedpart 6|, the intermediate curved part 62, the rectilinear part 63disposed laterally of shank 59, the curved part 64, the rectilinear part65 and therearwardly extending projection or nose 66. In other wordsparts 6| to 55 may be considered as spaced loop shaped arms disposedtransversely of shaft 59 and constituting abutment means against thestop 61 struck out ofpropeller 68.

If shaft 59 be rotated, the propeller is rotated and if the latter berotated, shaft 59is rotated. This action results in the connectionbetween the connector or hook H and the propeller. During the unwindingof the motor 5| shaft 59 drives the propeller by reason of pinor nose 65passing into an'opening in portion 61 of the propeller and the spacer 69which is also caused to rotate, and the'latter is held yieldinglyagainst bearing 10 by the elastic motor 5|. Conversely, if the propelleris rotated towind up the motor 5|, such action causes hook H orconnector to rotate bodily and of course the spacer 59 rotates relativetobearing I0. Thus on winding of the motor the rear eye of the connectoror hook H characterized by parts 56, 51 and 58 rotate the frontconnector 52 and the latter twists the cords of the elastic motor to thedesired tension.

With suflicient energy stored up in motor 5|,

' the airplane may be allowed to fly. upon releasing of the propeller.Thus the motor starts to lose its energy although the propeller israpidly rotating. During such rotation the longitudinally disposed boreof the dome or wind channel 34 of the front wing mount S allows aircurrents to pass therethrough in respect to obtaining increased liftingpower and stabilizing the flying action of the plane and the same ofcourse may be said of the vents defined by-nipples l1 and it will beobserved that the 'rear end of propeller mount P and the front end ofthe rear wing mount R each includes a top fin H and the side fins I2 andif desired side fins 12 of the mount P may be diverged sufficiently tofrictionally straddle legs 25adjacentthe spaced rotatable ears 29 (Fig.thereof to set the truck T in a desired tilted position against theenergy of the spring 22 which cushions the shock imparted to" the wheels28 on landing of the plane.

The stabilized cabin S according to Fig. 10 is along the lines of thestabilized casing 33 illustrated in Fig. 4 and differentiates therefromin the provision of a'pair of spaced but fixed partitions dividing thecabin or casing 33 into three longitudinally disposed and separatecompartments of which the central compartment 34' may be considered asthe wind channel or chute while the side compartments 35' if desired mayhave their outer ends closed as is well understood to simulate passengercabin means.

In the broader aspects of the invention, I do not desire to beunderstood as limiting the embodiment thereof to details hereinshown'illustratively as a wide variety of modifications may be madewithin the scope of the appended claims without departing from thespirit of the invention.

I claim: a. '1. In a toy airplane, an elongated chassis in-' .cludingspaced sides each having a track disposed longitudinally thereof, apropeller mount comprising a casing having means frictionally andslidably cooperating with the tracks of said sides, a front wing mountslidably and friction ally guided by said tracks, a rear tail mountslidably and frictionally guided by said tracks, a propeller, a loopshaped member connected to said propeller and having shaftmeansrotatably guided by said propeller mount, and an elastic motorconnected to said shaft means and said elongated chassis. 7 7

2. In a toy airplane, an elongated chassis including spaced sideseachhaving a depending track disposed longitudinally thereof, apropeller mount comprising a casing having upstanding means frictionallyand slidably cooperatingwith the tracks of said sides, a front wingmount having upstanding means slidably and frictionally guided by saidtracks, a rear tail mount having upstanding means slidably andfrictionally guided by said tracks, a propeller, a loopshaped memberconnected to said propeller and having cluding'spaced sides each havingan inclined'and overhanging track disposed longitudinally thereof, ahollow propeller mount comprising a casing,

having diverged means frictionally and slidably cooperating with thetracks of said sides, a hollow front Wing mount having divergedmeansslidably and frictionally guided by said tracks, a hollow rear tailmount havingdiverged means slidably and frictionally guided by saidtracks, a propeller, a loop shaped member connected to said propellerand having shaft means rotatably guided by said propeller mount, and anelastic motor connected to said shaft means and said elongated chassis.

4. In a toy airplane, an elongated substantially V shaped chassisincluding spaced sides each having an inclined and overhanging trackdis- I posed substantially the entire length of said chassis, a hollowpropeller mount comprising a casing having diverged means frictionallyand slidably interhooking with the tracks of said sides, a hollow frontwing mount having diverged means slidably and frictionally interhookingwith said tracks, a rear tail mount having diverged means slidably andfrictionally interhooking with said tracks, a propeller, a loop shapedmember connected to said propeller and having shaft means rotatablyguided by said propeller mount, and an elastic motor connected to saidshaft means and said elongated chassis.

5. In a toy airplane, a chassis having spaced tracks disposedlongitudinally of said chassis, a propeller mount slidably guided bysaid tracks, shaft means rotatably guided by said mount, a propellermounted on said shaft means, and a loop extending from said shaft meansand having an offset portion to interlock with said propeller to permitrotation of said propeller upon rotation of said shaft.

6. In a toy airplane, a chassis having spaced tracks disposedlongitudinally of said chassis, a propeller mount slidably guided bysaid tracks, shaft means rotatably guided by said mount, a propellermounted on said shaft means, and a loop extending from said shaft meansand disposed substantially normal thereto and having a portion disposedlaterally of said shaft means and provided with a rearwardly disposedportion to interlock with said propeller to permit rotation of thelatter upon rotation of said shaft means.

7. In a toy airplane, a chassis having spaced tracks, disposedlongitudinally of said chassis, a hollow propeller mount slidably guidedby said tracks, shaft means rotatably guided by said mount, a propellermounted on said shaft means, a loop extending substantially normal tosaid shaft means and integral therewith, spacer means mounted on saidshaft means and interposed between said propeller and mount, and meansextending laterally of said shaft means and integral with said loop butprojecting rearwardly thereof to interlock with said propeller andspacer means to drive both of the latter upon rotation of said shaftmeans.

8. In a toy airplane, an elongated chassis having spaced tracks, a truckincluding spaced swingable legs and having wheels rotatably carried bysaid legs, a propeller mount slidably guided by said trackslongitudinally of said chassis, and cushioning means operativelyinterposed between said track and mount.

9. In a toy airplane, a chassis having spaced tracks, a truck includingspaced swingable legs and having wheels rotatably carried by said legs,a hollow propeller mount slidably guided by and movably interlocking?with said tracks longitudinally of said chassis, and elastic meansoperatively connected to said truck and mount.

10. In a toy airplane, an elongated chassis having spaced dependingtracks, a truck including spaced swingable legs and having wheelsrotatably carried by said legs, a hollow propeller mount slidably guidedby and movably interlocking said tracks longitudinally of said chassis,and a spring operatively interposed between said track and mount.

11. In a toy airplane, an elongated chassis having sides includingtracks, a propeller mount movably and slidably guided by said trackslongitudinally of said chassis, and a front wing mount slidably andremovably guided by said tracks longitudinally of said chassis.

12. In a toy airplane, an elongated chassis having diverged sidesincluding depending tracks, a propeller mount removably and slidablyinterlocking with and guided by said tracks longitudinally of saidchassis, and a hollow front wing mount slidably interlocking with andremovably guided by said tracks longitudinally of said chassis.

13. In a toy airplane, a substantially V shaped chassis including alongitudinally disposed groove; a rear wing mount, a front wing mount,and a propeller mount each slidably guided by said chassislongitudinally thereof; a propeller, shaft means carried by saidpropeller and rotatably supported by said propeller mount, and anelastic motor disposed at least in part within said groove and connectedto said rotatable shaft means and fixedly anchored to said chassis.

14. In a toy airplane, a substantially V shaped chassis including alongitudinally disposed groove and depending tracks; a rear wing mount,a front wing mount, and a propeller mount each having means slidablyguided by said tracks longitudinally of said chassis; a propeller, shaftmeans carried by said propeller and rotatably supported by saidpropeller mount, and an elastic motor disposed at least in part withinsaid groove and connected to said rotatable shaft means and fixedlyanchored to said chassis.

15. In a knock down toy airplane, a substantially V shaped chassisincluding a longitudinally disposed groove and depending side tracks; ahollow rear wing mount, a hollow front wing mount, and a hollowpropeller mount each having spaced and diverged means slidably guided bysaid tracks longitudinally of said chassis; a propeller, shaft meanscarried by said propeller and rotatably supported by said propellermount, an elastic motor disposed at least in part within said groove andconnected to said rotatable shaft means and fixedly anchored to saidchassis, and loop means integral with and extending substantially normalto said shaft means and including a rearwardly disposed portionremovably interlock- ALFRED HARCB.

